Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 273487 found under Stem Fluid Valve by West Midland American Vehicles Ltd. The National Stock Number assigned to this part is 4810012184676, and the Federal Supply Class is 4810 Valves Powered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 273487.